Damper



April 13 1926. 1,580,106

. J. ALLIE DAMPER Filed June 2 1923 gwoentoz Lcn a efie J. AHIe attotneqs Patented Apr. 13, 1926.

UNITE-D IENI we;

LAFAYETTE J. ALLIE, on em. 'IPAUL, MINNESOTA, assrenon or ONE-HALF T VALENTINE G. ALLIE, OF" ST. ,"PAUL, MI NNESO'IPA;

DAMPER.

Application filed June 25, 1923'. Seri aIVNo 647,634.

To all whom it may concern:

Be it known thatI, Larmrirr'rnv J. ALLIE, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Improvement in Dampers, of which the following is a specificationf My invention relates to dampers and has for its object to provide a damper which may and which are adapted 'to simultaneously] pierce holes through the Stovepipe when the same has been flattened and the damper inserted within the same and movedinto its transverse position.

A still further'object is to'provide a detachable handle adapted to be secured to damper.

vention will be found in the detailed c es'cription thereof and areparticularly pointed out When 1n this position, said spindle 1s welded in'the claims:

In the drawings specification Figure 1 is a plan view of a stovepipe showing my inventioninstalled within the same having the handle therefor removed.

Figure 2 isa sectional view of the stovepipe shown in Figure 1 with the handle at tached to the same.

Figure 3 is a plan view of a stovepipe having my invention positioned within the .same prior to .the forming of the holes through the stovepipe for the pivoting of the damper. i

, Figure 1 is a sectional view taken on line 44 of Figure 3. p

Figure 5 is an enlarged sectional detail view of the end of the spindle and handle of the damper showing the attachment of the handle to the spindle.

i n the installation of dampers in stovepipe's, considerable difficulty has been found forming part of this addition, my invention includes a portion best indicated one end of said spindle for rotatingthe 'The full objects and advantages ofmy inj in installing the'damper on account of forming the holes inthe stovepipe through which the axis-of the damper extends and then of mounting the damper upon the spindle after the holes have been made. My invention'provides a device which may be readily and quickly installed and in which the holes areautomatically punched to properly posi-v tion the damper within the stovepipe; In

detachv able handle which maybe secured to one end ofthe operating spindle so that the damper may easily be manipulated.

u y invention, asbest shown in Figure 1,

2 and 3, comprises a plate 10 formed of sheet metal whichmay be mounted in an ordinary stovepipe 11, as will presently be described. This plate 10 hastwo holes 12 and 13 tormed'in 1t and has attached to it a spindle 14. Spindleltpasses through'two 7 iloops 15.7and 16 formed on'the said plate 10,

which loops; are constructed by severing a of the material ofthe'body of the plate 10 and forcing the same outwardly, as

shown in Figure 1, is considerably longer than the "plate lOand, when first constructed,

is formed out of a-single piece 01"- wire or a ro d sharpened at the two ends as indicated at 17-"and 18. In mounting thespindle 14: 35 upon the platefllO, the said spindle is inserted through the two loops 15 and 16 and positionedcentrally relative to the plate 10.

may be riveted at the point 19, however, if

desired. I

In installing the damper in the stovepipe 11, the following procedure is employed: I Stovepipe 11 is first flattened until it takes the shape indicated at 20 in Figure 3, in which the diameter ofthe said stovepipe becomes lengthened in onedirection and short: we ened in theother. The length of the spindle 14: is such that the said spindle and the damper plate 10 may beinserted into the stovepipe when in its flattened condition, as indicated'at 20, to take the position shown in Figures 4 and? When in this position, as the stovepipe is released, the same holds the damper temporarily in lace. If new the plate 10 be rotated from the position shown in Figure 1 to that shown in Figure 2 in Figure 4/ Spindle let',"as 80 causing the edges 21 and 22 of the said damper to engage the interior of the stove pipe 11, the pointed ends 17 and 18 of spindle 14 are caused to be forced through the walls of the stovepipe 11 when the same again resumes its normal circular formation. In this manner, the stovepipe is easily pierced and the damper plate caused to be quickly and readily installed in the stovepipe.

F or operating the damper after the same has been installed, I provide a handle 23 which has a hollow stem 2% secured to the same, which stem fits over the protruding end 25 of the spindle The end 25 of the spindle 14 is formed with a notch or depression 27 in which adapted to be seated a tit 28 formed on the interior of the stem 2st. The stem 24 is split at 2'6 so that the tit 28 may readily be forced over the end of the spindle let as the handle 23 is being pressed upon the said spindle. AS soon as the tit 28 becomes lodged in the recess or cavity 2'2, the stem again springs together to clamp the handle 23 firmly upon t e end of spindle 14 so that the damper plate to may be easily rotated by rotating the handle 23. Although I have shown in the drawings but one form of attaching the handle 23 to the spindle 1. it is obvious that the same result can be accomplished in different ways. In a similar manner, a cap 50 may be attached to the other end 17 of the spindle 14 to cover the sha p point 01" the same.

The advantages of my invention are manifest. A device is provided which be readily and easily installed in a stovepipe which does not require the forming and aligning of the holes for pivoting the damper spindle and which does not require the subsequent assembling of the damper parts within the Stovepipe. My damper will opcrate to simultaneously pierce both of the holes and does not require any additional tools. Furthermore, the spindle is rigidly attached t the damper so thatthe same can never become loosened from the damper plate to render the device inoperable. The handle is readily attached to the spindle after which the damper operates effectively and positively as required.

In accordance with the patent statutes, I have described the principles of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the construction shown is only illustrative and that the invention can he carried out by other means and applied to uses other than those set forth within the scope of the following claims.

I claim:

l. in combination with a stovepipe adapted to be s rang into an ovular formation or a damper having a spindle attached thereto of a length equal to the longer diameter of d stovcpipe, formed w'th pointed ends, said damper being oi a diameter slightly less than the circular diameter of said stovepipe and adapted to enga 'e the edges of said stovepipe across its shorter diameter and to force said edges outwardly as said damper is rotated to force the wall of said stovepipe into its normally circular formation to cause the said pointed ends of said damper spindle to penetrate through the walls of said stovepipe.

2. A damper comprisin a damper plate, spindle, said spindle projecting outwardly beyond the edge of said damper plate at both ends thereof and being formed with piercing points and a handle detachably mounted upon one of said protruding ends.

LAFAYETTE J. ALLIE. 

